WThe first season of the television series Stargate Atlantis commenced airing on the Sci Fi Channel in the United States on July 16, 2004, concluded on The Movie Network in Canada on January 31, 2005, and contained 20 episodes. The show was a spin off of sister show, Stargate SG-1. Stargate Atlantis re-introduced supporting characters from the SG-1 universe, such as Elizabeth Weir and Rodney McKay among others. The show also included new characters such as Teyla Emmagan and John Sheppard. The first season is about a military-science expedition team discovering Atlantis and exploring the Pegasus Galaxy. However, there is no way to return home, and they inadvertently wake a hostile alien race known as the Wraith, whose primary goal is to gather a fleet to invade Atlantis and find their new "feeding ground", Earth.
WThe second season of the television series Stargate Atlantis commenced airing on the Sci Fi Channel in the United States on July 15, 2005, concluded on The Movie Network in Canada on January 30, 2006, and contained 20 episodes. The show itself is a spin off of its sister show, Stargate SG-1. The series was developed by Brad Wright and Robert C. Cooper, who also served as executive producers. Season two regular cast members include Joe Flanigan, Torri Higginson, Rachel Luttrell, Jason Momoa, Paul McGillion, and David Hewlett as Dr. Rodney McKay. The second season focuses on the Atlantis Expedition continuing to make the Wraith think that the city self-destructed, while continuing to explore Pegasus and hunt for ZPMs this means at times lying to new allies about the city even sometimes claiming to be a small contingent that escaped the Siege; the season also marks the first time the Expedition is able to make contact with Earth although doing so uses a lot of power so the contact is oftentimes via the Daedalus, an intergalactic Earth-Asgard vessel commanded by Col. Steven Caldwell who makes clear his desire to be Military Leader of Atlantis but eventually settles for a sort of advisory role as it becomes clear that Dr. Weir and the Lt.Col Sheppard are a duo not to be messed with. The central plot of the second season is the development of Dr. Beckett's retrovirus, which can, theoretically, turn a Wraith into a human.
WThe third season of Stargate Atlantis, an American-Canadian television series, began airing on July 21, 2006 on the US-American Sci Fi Channel. The third season concluded after 20 episodes on February 5, 2007 on the Canadian The Movie Network. The series was developed by Brad Wright and Robert C. Cooper, who also served as executive producers. Season three regular cast members include Joe Flanigan, Torri Higginson, Rachel Luttrell, Jason Momoa, Paul McGillion, and David Hewlett as Dr. Rodney McKay.
WThe fourth season of Stargate Atlantis, an American-Canadian television series, began airing on September 28, 2007 on the US-American Sci Fi Channel. The fourth season concluded after 20 episodes on March 7, 2008 on Sci Fi. The series was developed by Brad Wright and Robert C. Cooper, who also served as executive producers. Amanda Tapping joins the cast as a regular for 14 episodes, Jewel Staite was a recurring character for eleven episodes, while regular cast member Torri Higginson was a recurring cast member for four episodes. Other season four regular cast members include Joe Flanigan, Rachel Luttrell, Jason Momoa and David Hewlett.
WThe fifth and final season of the military science fiction television series Stargate Atlantis commenced airing on the Sci Fi Channel in the United States on July 11, 2008, concluded on the same channel on January 9, 2009, and contained 20 episodes. The show itself is a spin off of its sister show, Stargate SG-1. The season upgrades previous supporting characters cast members such as Richard Woolsey and Jennifer Keller. Amanda Tapping's character Samantha Carter was downgraded to recurring character in this season. The fifth and final season is about a military-science expedition team fighting against the Wraith from their base of operation, Atlantis. The Wraith primary goal is to gather a fleet to invade Atlantis and find their new "feeding ground", Earth.
WStargate Infinity is a 2002-2003 French-American-Canadian animated science fiction television series co-produced by Les Studios Tex S.A.R.L. and DIC Entertainment Corporation, in association with MGM Television Entertainment as part of Metro-Goldwyn-Mayer's (MGM) Stargate franchise, but is not considered official Stargate canon. The show was created by Eric Lewald and Michael Maliani, as a spin-off series of Stargate SG-1, which was created by Brad Wright and Jonathan Glassner in 1997 after the release of the original film, Stargate (1994) by Dean Devlin and Roland Emmerich. The animation had a low viewership rating and poor reception; it was canceled after one season.
WThe first season of the military science fiction television series Stargate SG-1 commenced airing on the Showtime channel in the United States on July 27, 1997, concluded on the Sci Fi channel on March 6, 1998, and contained 22 episodes. The show itself is a spin-off from the 1994 hit movie Stargate written by Dean Devlin and Roland Emmerich. Stargate SG-1 re-introduced supporting characters from the film universe, such as Jonathan "Jack" O'Neill and Daniel Jackson and included new characters such as Teal'c, George Hammond and Samantha "Sam" Carter. The first season was about a military-science expedition team discovering how to use the ancient device, named the Stargate, to explore the galaxy. However, they encountered a powerful enemy in the film named the Goa'uld, who are bent on destroying Earth and all who oppose them.
WThe second season of Stargate SG-1, an American-Canadian television series, began airing on June 26, 1998 on Showtime. The second season concluded after 22 episodes on February 10, 1999 on British Sky One, which overtook Showtime in mid-season. The series was developed by Brad Wright and Jonathan Glassner, who also served as executive producers. Season two regular cast members include Richard Dean Anderson, Michael Shanks, Amanda Tapping, Christopher Judge, and Don S. Davis.
WThe third season of the military science fiction television series Stargate SG-1 commenced airing on Showtime in the United States on June 25, 1999, concluded on Sky1 in the United Kingdom on March 8, 2000, and contained 22 episodes. The third season follows SG-1 in their fight against the Goa'uld Empire's System Lords, the main being Sokar until "The Devil You Know" and then Apophis, after he regained power during that episode. The season introduces the long-unseen and unnamed enemy of the Asgards, the Replicators, who are self-replicating machines that seek to convert all civilizations into more of themselves, thus posing a dire threat to all other beings. The Replicators are first mentioned, but not named, in season three episode "Fair Game".
WThe fourth season of Stargate SG-1, an American-Canadian television series, began airing on June 30, 2000 on Showtime. The fourth season concluded after 22 episodes on February 14, 2001 on British Sky One, which overtook Showtime in mid-season. The series was developed by Brad Wright and Jonathan Glassner. Season four regular cast members include Richard Dean Anderson, Michael Shanks, Amanda Tapping, Christopher Judge, and Don S. Davis.
WThe fifth season of the military science fiction television series Stargate SG-1 commenced airing on Showtime in the United States on June 29, 2001, concluded on Sky1 in the United Kingdom on February 6, 2002, and contained 22 episodes. The fifth season introduces future main character Jonas Quinn portrayed by Corin Nemec from 2002–2004. The fifth season is about the ongoing war with the Goa'uld Empire after the death of Apophis at the start of the season and the rise of a new System Lord named Anubis. SG-1, a military-science team, are set to explore the Milky Way Galaxy.
WThe sixth season of Stargate SG-1, an American-Canadian television series, began airing on June 7, 2002 on Sci Fi. The sixth season concluded after 22 episodes on February 19, 2003 on the UK's Sky One, which had overtaken the Sci-Fi Channel's number of new-episode broadcasts mid-season. The series was developed by Brad Wright and Jonathan Glassner. Season six regular cast members include Richard Dean Anderson, Amanda Tapping, Christopher Judge, Corin Nemec, and Don S. Davis.
WThe seventh season of Stargate SG-1, an American-Canadian television series, began airing on June 13, 2003 on Sci Fi. The seventh season concluded after 22 episodes on March 9, 2004 on British Sky One, which overtook the Sci-Fi Channel in mid-season. The series was developed by Brad Wright and Jonathan Glassner. Season seven regular cast members include Richard Dean Anderson, Amanda Tapping, Christopher Judge, Don S. Davis, and Michael Shanks.
WThe eighth season of Stargate SG-1, an American-Canadian military science fiction television series, began airing on July 9, 2004 on the Sci Fi channel. The eighth season concluded on February 22, 2005, after 20 episodes on British Sky One, which overtook the Sci Fi Channel in mid-season. This was the first season of the show to have 20 episodes instead of 22, as well as the first to air concurrently with Stargate SG-1 spinoff series Stargate Atlantis. The series was originally developed by Brad Wright and Jonathan Glassner, while Brad Wright and Robert C. Cooper served as executive producers. Season eight regular cast members include Richard Dean Anderson, Amanda Tapping, Christopher Judge, and Michael Shanks. The eighth season begins with the SG-1 team trying to revive Colonel Jack O'Neill after the events of the seventh season. At the end of the two-episode season opener, Colonel O'Neill is promoted to General and assumes command of Stargate Command (SGC), while Major Samantha Carter is promoted to Lieutenant Colonel and assumes command of SG-1. The season arc centers on the growing threat and seemingly final defeat of the Goa'uld and the Replicators, races who were introduced in the first and third season of the show, respectively.
WThe ninth season of Stargate SG-1, an American-Canadian television series, began airing on July 15, 2005 on SCI FI. The ninth season concluded on March 10, 2006, after 20 episodes on the same channel. The series was originally developed by Brad Wright and Jonathan Glassner, and Brad Wright, Robert C. Cooper, Joseph Mallozzi and Paul Mullie served as executive producers. The season arc centers on the new threat of the Ori, a race who Daniel Jackson and Vala Mal Doran unleash in an unknown galaxy, and who are threatening to prepare for a crusade into the Milky Way galaxy to convert the beings to their religion called Origin.
WThe tenth and final season of Stargate SG-1, an American-Canadian television series, began airing on July 14, 2006 on Sci Fi Channel. It concluded after 20 episodes on March 13, 2007 on Sky 1, which overtook the Sci-Fi Channel in mid-season. The series was developed by Brad Wright and Jonathan Glassner. Brad Wright, Robert C. Cooper, Joseph Mallozzi, and Paul Mullie served as executive producers. Season ten regular cast members include Ben Browder, Amanda Tapping, Christopher Judge, Claudia Black, Beau Bridges, and Michael Shanks.
WThe first season of Stargate Universe consists of 20 episodes. Brad Wright and Robert C. Cooper wrote the three-parter series opener named "Air", which was originally planned to be a two-parter. The first two parts of "Air" premiered on Syfy on October 2, 2009, with regularly weekly airing beginning on October 9, 2009. "Fire" was originally going to be the title for episode four, but the story and script was too big to be able to fit into one episode, so the producers changed it to become a two-parter called "Darkness" and "Light", therefore pushing all future episodes forward one slot. "Justice" was the mid-season finale. The back half of the first season aired on Friday April 2, 2010 on Space and Syfy.
WThe second and final season of Stargate Universe was announced by Syfy on December 13, 2009. Like the first season, the second season consisted of 20 episodes. The series was moved from the franchise's long history of Friday to Tuesday, along with Caprica, as Syfy had picked up WWE Friday Night SmackDown. The series resumed on September 28, 2010, USA. In Ireland & UK, the series resumed on October 5 at 9pm on Sky1 and Sky1 HD.